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The 1973 tennis match between Bobby Riggs and Billie Jean King, dubbed "The Battle of the Sexes," is an iconic moment in sports history.  King beat Riggs at the height of the feminist movement, proving that women could beat men in a test of physical ability, at a time when women could not even obtain a credit card without a man’s signature. 

For years, though, speculation has been that Riggs threw the match.  

Riggs had decisively beat No. 1-ranked Margaret Court in a game just months before he played King, who was then ranked No. 2.